2022 CITROEN C5 AIRCROSS cooling

12
Instruments
(2): Contact a CITROËN dealer or a qualified
workshop.
(3): Go to a CITROËN dealer or a qualified
workshop.
List of warning and
indicator lamps
Red warning/indicator lamps
STOP
Fixed, associated with another warning
lamp, accompanied by the display of a
message and an audible signal.
A serious fault with the engine, braking system,
power steering, automatic gearbox or a major
electrical fault has been detected.
Carry out (1) and then (2).
Engine oil pressureFixed.
There is a fault with the engine lubrication
system.
Carry out (1) and then (2).
Maximum coolant temperatureFixed.
The temperature of the cooling system is
too high.
Carry out (1), then wait until the engine has
cooled down before topping up to the required
level if necessary. If the problem persists, carry
out (2).
System malfunction (Rechargeable hybrid)Fixed.
The rechargeable hybrid system is faulty.
Carry out (1) and then (2).
Cable connected (Rechargeable hybrid)Fixed.
It is not possible to start the vehicle while
the charging cable is connected to the vehicle’s
connector.
Disconnect the charging cable and close the
flap.
Battery chargeFixed.
The battery charging circuit has a fault
(dirty or loose terminals, slack or cut alternator
belt, etc.).
Clean and retighten the terminals. If the warning
lamp does not go off when the engine is started,
carry out (2).
Door(s) openFixed, associated with a message
identifying the door.
If one of the doors or the boot is not fully closed
(speed below 6 mph [10 km/h]).
Fixed, associated with a message
identifying the door, together with an
audible signal.
If one of the doors or the boot is not fully closed
(speed above 6 mph [10 km/h]).
Seat belt not fastened/unfastenedFixed or flashing accompanied by an
audible signal.
A seat belt has not been fastened or has been
unfastened.
Electric parking brakeFixed.
The electric parking brake is applied.
Flashing.
Application/release is faulty.
Carry out (1): park on flat ground (on a level
surface).
With a manual gearbox, engage a gear.
With an automatic gearbox, select mode

P
.
Switch off the ignition and carry out (2).
BrakingFixed.
The brake fluid level in the braking circuit
has dropped significantly.
Carry out (1), then top up with fluid that complies
with the manufacturer's recommendations. If the
problem persists, carry out (2).
Fixed.
The electronic brake force
distribution

(EBFD) system is faulty.
Carry out (1) and then (2).
Orange warning/indicator lamps
Anti-lock Braking System (ABS)
Fixed.
The anti-lock braking system has a fault.
The vehicle retains conventional braking.

52
Ease of use and comfort
Footwells.
Each press on a button activates or deactivates
the function. The indicator lamp is on when the
button is activated. For a uniform distribution
of air in the passenger compartment, the three
buttons can be activated simultaneously.
Automatic visibility programme
For more information on the button 1 "Automatic
Visibility Programme", refer to the section
"Front Demisting/Defrosting ".
Air conditioning on/off.
The air conditioning is designed to operate
effectively in all seasons, with the windows
closed.
It enables you to:
– lower the temperature in summer,
– increase the effectiveness of the demisting in
winter, above 3°C.
► Press button 8 to activate/deactivate the air
conditioning system.
When the indicator lamp is on, the air
conditioning function is activated.
The air conditioning does not operate when the air flow adjustment is inhibited.
To obtain cool air more quickly, you can
use recirculation of the interior air for a few
moments. Then return to the intake of exterior
air.
Servicing the ventilation and air
conditioning system
►

Ensure that the passenger compartment
filter is in good condition and have the filter
elements replaced regularly

.
We recommend using a composite passenger
compartment filter. Thanks to its special active
additive, this type of filter helps to purify the
air breathed by the occupants and keep the
passenger compartment clean (by reducing
allergic symptoms, unpleasant odours and
greasy deposits).
►

T

o ensure correct operation of the
air conditioning system, have it checked
according to the recommendations in the
Maintenance and Warranty Guide.
Stop & Start
The heating and air conditioning systems
only operate when the engine is running.
Temporarily deactivate the Stop & Start
system to maintain a comfortable temperature
in the passenger compartment.
For more information on the Stop & Start,
refer to the corresponding section.
Manual air conditioning

Press the Climate menu button located
under the touch screen to display the
system controls page.


1. Automatic Visibility programme.
2. Recirculation of interior air.
3. Rear screen demisting/de-icing.
4. System switch-off.
5. Air flow adjustment.
6. Temperature adjustment.
7. Air distribution adjustment.
8. Air conditioning on/off.
9. Maximum air conditioning.
The air conditioning system only operates with
the engine running.
Temperature adjustment
► Press one of the arrows 6 to decrease (blue)
or increase (red) the value.
The value indicated corresponds to a level of
comfort and not to a precise temperature.
For maximum cooling or heating of the
passenger compartment, press the
temperature setting button down or up until
LO or HI is displayed.
Air flow adjustment
► Press one of the buttons 5 to increase (+) or
decrease ( -) the speed of the ventilation fan.
The air flow symbol (a fan) is filled in
progressively as the speed of the fan is
increased.
By reducing the air flow to a minimum, you are
stopping ventilation.
Avoid driving for too long without ventilation - risk of condensation and
deterioration of air quality!
Air distribution adjustment
You can vary the air distribution in the passenger
compartment using the three buttons 7.
Windscreen and side windows.
Central and side air vents.

54
Ease of use and comfort
– air flow, button 5,
– air distribution, button 7,
As soon as you change a setting, the indicator
lamp for the button 10 "AUTO" goes out.
► Press button 10 again to reactivate the
automatic comfort programme.
Air flow adjustment
► Press one of the buttons 5 to increase (+) or
decrease ( -) the fan speed.
The air flow symbol (a fan) is filled in
progressively as the speed of the fan is
increased.
By reducing the air flow to minimum, you are
stopping ventilation.
"OFF " is displayed alongside the fan.
Avoid driving for too long without
ventilation - risk of condensation and
deterioration of air quality!
Air distribution adjustment
You can vary the air distribution in the passenger
compartment using the three buttons 7.
Windscreen and side windows.
Central and side air vents.
Footwells.
Each press on a button activates or deactivates
the function. The indicator lamp is on when the
button is activated. For a uniform distribution
Operation of the air conditioning and regulation
of temperature, air flow and air distribution in the
passenger compartment are automatic.
Temperature adjustment
The driver and front passenger can each set the
temperature independently of one another.
►
Press one of the buttons
6 to decrease (blue)
or increase (red) the value.
The value indicated corresponds to a level of
comfort and not to a precise temperature.
It is recommended that you avoid a difference of
more than 3 in the settings for left and right.
For maximum cooling or heating of the
passenger compartment, press the
temperature setting button down or up until
LO or HI is displayed.
Automatic comfort programme
► Press button 10 "AUTO" to activate automatic
mode of the air conditioning system.
When the indicator lamp in the button is on, the
air conditioning system operates automatically:
the system manages the temperature, air
flow and air distribution in the passenger
compartment in an optimum way according to
the comfort level you have selected.
It is possible to adjust the intensity of the
automatic comfort programme by choosing one
of the settings offered in the secondary page,
accessible from button 11 "OPTIONS ".
To change the current setting, shown by
illumination of the corresponding indicator lamp,
press button 13 repeatedly until the desired
mode is displayed:
"Soft": provides soft and quiet operation by
limiting air flow.
"Normal": offers the best compromise between
a comfortable temperature and quiet operation
(default setting).
"Fast": provides strong and effective air flow.
Use the "Normal" or "Fast" modes to ensure the
comfort of passengers in the rear seats.
This setting is associated with automatic mode
only. However, on deactivation of AUTO mode,
the indicator lamp for the last setting remains on.
Changing the setting does not reactivate AUTO
mode if this was deactivated.
In cold weather with the engine cold, the
air flow is increased gradually until the
comfort setting has been reached, in order to
limit the delivery of cold air into the passenger
compartment.
On entering the vehicle, if the interior
temperature is much colder or warmer than
the comfort setting requested, there is no
need to alter the value displayed to more
quickly reach the required level of comfort.
The system automatically corrects the
temperature difference as quickly as possible.
Automatic visibility programme
For more information on the button 1 "Automatic
Visibility Programme", refer to the section
"Front Demisting/Defrosting ".
"Air Quality System" (AQS)
function
Using a pollution sensor, this function
automatically activates recirculation of the
interior air once a certain level of polluting
substances in the exterior air is detected.
When the air quality returns to a satisfactory
level, recirculation of interior air is automatically
deactivated.
This function is not designed to detect
unpleasant odours.
Recirculation is automatically activated when the
windscreen wash is used or when reverse gear
is engaged.
The function does not operate if the exterior
temperature is below 5
°C, to avoid the risk of
misting of the windscreen and side windows.
To activate or deactivate the function, go to the
secondary page by using button 11 "OPTIONS ",
then press button 15.
Manual control
You can manually adjust one or more of these
functions, while retaining automatic control of the
other functions by the system:

98
Driving
automatically to preserve the remaining battery
charge.
Switching off the engine leads to a loss
of braking assistance.
Starting the engine
Parking brake applied:
► With a manual gearbox, place the gear lever
in neutral then depress the clutch pedal fully.
► With an automatic gearbox, place the gear
selector in mode N or P then depress the brake
pedal fully.
► Insert the key into the ignition switch; the
system recognises the code.
► Unlock the steering column by simultaneously
turning the steering wheel and the key.
In certain cases, you may have to apply
significant force to move the steering
wheel (wheels on full lock, for example).
► With a petrol engine , operate the starter
motor by turning the key to position 3 without
pressing the accelerator pedal, until the engine
starts. Once the engine starts, release the key.
With petrol engines , after a cold start,
pre-heating the catalytic converter can
cause clearly-felt engine vibrations when
stationary, with the engine running, for
anything up to two minutes (accelerated idle
speed).
If the outside temperature is high, let the
engine idle for 1 to 2 minutes after the
vehicle comes to a stop, to help it to cool.
Before setting off
Nose weight
► Distribute the load in the trailer so that the
heaviest items are as close as possible to the
axle and the nose weight (at the point where it
joins your vehicle) approaches the maximum
permitted without exceeding it.
Tyres
► Check the tyre pressures of the towing
vehicle and of the trailer , observing the
recommended pressures.
Lighting
► Check the electrical signalling on the trailer
and the headlamp beam height of your vehicle.
If a genuine CITROËN towing device is
used, the rear parking sensors will be
deactivated automatically to avoid the audible
signal.
When driving
Cooling
Towing a trailer uphill causes the coolant
temperature to increase. The maximum towable
load depends on the gradient and the exterior temperature. The fan’s cooling capacity does not
increase with engine speed.
►

Reduce speed and lower the engine speed to
limit the amount of heating produced.
In all cases, pay attention to the coolant
temperature.
If this warning lamp and the STOP
warning lamp come on, stop the
vehicle and switch off the engine as soon as
possible.
Brakes
Braking distances are increased when towing a
trailer. To avoid overheating the brakes, the use
of engine braking is recommended.
Side wind
Bear in mind that the vehicle will be more
susceptible to wind when towing.
Anti-theft protection
Electronic immobiliser
The keys include an electronic engine
immobiliser system, which secret code must be
recognised in order for starting to be possible.
If the system malfunctions, indicated by the
display of a message, the engine will not start.
Contact the CITROËN dealer.
Starting / Switching off the
engine with the key
Key ignition switch

It has 3 positions:
– position 1 (Stop): inserting and removing the
key, steering column locked.
–
position 2 (Ignition on) : steering column
unlocked, ignition on, Diesel preheating, engine
running,
–
position 3 (Starting).
Avoid attaching heavy objects to the key
or the remote control, which would weigh
down on its blade in the ignition switch and
could cause a malfunction.
Ignition on position
It allows the use of the vehicle's electric
equipment or portable devices to be charged.
Once the state of charge of the battery drops to
the reserve level, the system switches to energy
economy mode : the power supply is cut off

166
Practical information
► Gently tilt the screen downwards.
► Pull it towards you to free the entire unit.
For the lower centre screen
► Insert a flat blade screwdriver into each of
the screen's orifices and prise out the 5 clips to
unclip them.
► Pull it towards you to free the entire unit.
Fitting

► Place one of the side screens against the
corresponding side of the lower bumper grille.
► Insert the mounting tabs into the bumper until
they are all properly seated.
► Check that the unit is firmly held by pressing
around the edges.
Repeat the same operations for the other side
screen, then for the lower centre screen in the
lower part of the bumper.
functions, such as the air conditioning and the
heated rear screen.
The deactivated functions are reactivated
automatically as soon as conditions permit.
Snow chains
In wintry conditions, snow chains improve
traction as well as the behaviour of the vehicle
when braking.
The snow chains must be fitted only to the front wheels. They must never be
fitted to "space-saver" type spare wheels.
Take account of the legislation specific to each country on the use of snow chains
and the maximum authorised speed.
Use only chains designed to be fitted to the type
of wheel fitted to the vehicle:
Original tyre size Maximum link size 215/65 R17 9 mm
225/55 R18 9 mm
235/55 R18 Cannot be fitted with
chains
205/55 R19 9 mm
For more information on snow chains, contact a
CITROËN dealer or a qualified workshop.
Installation tips
► To fit the chains during a journey, stop the
vehicle on a flat surface on the side of the road.
►

Apply the parking brake and position any
wheel chocks under the wheels to prevent
movement of the vehicle.
►


Fit the chains following the instructions
provided by the manufacturer

.
►

Move off gently and drive for a few moments,
without exceeding 31

mph (50 km/h).
►

Stop the vehicle and check that the snow
chains are correctly tightened.
It is strongly recommended that before
you leave, you practise fitting the snow
chains on a level and dry surface.
Avoid driving with snow chains on roads that have been cleared of snow to avoid
damaging the vehicle's tyres and the road
surface. If the vehicle is fitted with alloy
wheels, check that no part of the chain or its
fixings is in contact with the wheel rim.
Very cold climate screen
(Depending on country of sale)
This removable device prevents the
accumulation of snow around the radiator
cooling fan.
It consists of two elements for the lower part of
the front bumper and another element for the
lower central part.
In case of difficulty with installation/
removal
Contact a CITROËN dealer or a qualified
workshop.
Before any operation, ensure that the
engine is off and the cooling fan has
stopped.
It is essential to remove them when:
– the outside temperature exceeds
10°C.
–

recovery is in progress.
–


the speed is above 75 mph (120
km/h).
Removing

For the side screens
► Insert a flat blade screwdriver into each of
the screen's orifices and prise out the 4
clips to
unclip them.

168
Practical information
Closing
► Hold the bonnet and pull out the stay from the
support slot.
► Clip the stay in its housing.
► Lower the bonnet and release it near the end
of its travel.
► Pull on the bonnet to check that it is locked
correctly.
Because of the presence of electrical
equipment under the bonnet, it is strongly
recommended that exposure to water (rain,
washing, etc.) be limited.
Engine compartment
The engine shown here is an example for
illustrative purposes only.
The locations of the following elements may
vary:
– Air filter.
– Engine oil dipstick.
– Engine oil filler cap.
Petrol engine

You must only attach the transverse bars to
the four fixing points located on the roof frame.
These points are concealed by the vehicle doors
when the doors are closed.
The roof bar fixings have a stud which must be
inserted into the opening of each fixing point.
Fitting on longitudinal bars

The transverse bars must be fixed at the
engraved markings on the longitudinal bars.
Bonnet
Stop & Start
Before doing anything under the bonnet,
you must switch off the ignition to avoid any
risk of injury resulting from an automatic
change to START mode.
Rechargeable hybrid vehicles
Before any work is carried out under the
bonnet, it is essential to switch off the ignition,
check that the READY indicator lamp is off on
the instrument panel and wait 4 minutes - risk
of serious injury!
The location of the interior bonnet release lever prevents opening the
bonnet when the left-hand front door is
closed.
When the engine is hot, handle the
exterior safety catch and the bonnet stay
with care (risk of burns), using the protected
area.
When the bonnet is open, take care not to
damage the safety catch.
Do not open the bonnet under very windy
conditions.
Cooling of the engine when stopped
The engine cooling fan may start after
the engine has been switched off.
Take care with objects or clothing that
could be caught in the blades of the fan!
Opening



► Open the left-hand front door.
► Pull the interior release lever , located at the
bottom of the door frame, towards you.


► Lift the exterior safety catch and raise the
bonnet.
►

Unclip the stay from its housing and place it
in the support slot to hold the bonnet open.

169
Practical information
7Closing
► Hold the bonnet and pull out the stay from the
support slot.
►

Clip the stay in its housing.
►


Lower the bonnet and release it near the end
of its travel.
►


Pull on the bonnet to check that it is locked
correctly

.
Because of the presence of electrical
equipment under the bonnet, it is strongly
recommended that exposure to water (rain,
washing, etc.) be limited.
Engine compartment
The engine shown here is an example for
illustrative purposes only.
The locations of the following elements may
vary:
–

Air filter
.
–

Engine oil dipstick.
–


Engine oil filler cap.
Petrol engine

Diesel engine

1. Screenwash fluid reservoir
2. Engine coolant reservoir
3. Brake fluid reservoir
4. Battery/Fuses
5. Remote earth point (-)
6. Fusebox
7. Air filter
8. Engine oil filler cap
9. Engine oil dipstick
The Diesel fuel system operates under
very high pressure.
All work on this circuit must be carried out
only by a CITROËN dealer or a qualified
workshop.
Checking levels
Check all of the following levels regularly in
accordance with the manufacturer's service
schedule. Top them up if required, unless
otherwise indicated.
If a level drops significantly, have the
corresponding system checked by a CITROËN
dealer or a qualified workshop.
The fluids must comply with the manufacturer's requirements and with
the vehicle's engine.
Take care when working under the bonnet, as certain areas of the engine
may be extremely hot (risk of burns) and the
cooling fan could start at any time (even with
the ignition off).
Used products
Avoid prolonged contact of used oil or fluids with the skin.
Most of these fluids are harmful to health and
very corrosive.
Do not discard used oil or fluids into
sewers or onto the ground.
Empty used oil into the containers reserved
for this purpose at a CITROËN dealer or a
qualified workshop.
Engine oil
The level is checked, with the engine having been switched off for at least 30
minutes and on level ground, either using the oil
level indicator in the instrument panel when the

170
Practical information
Once the pressure has dropped, remove the cap
and top up to the required level.
Cooling of the engine when stopped
The engine cooling fan may start after
the engine has been switched off.
Take care with objects or clothing that
could be caught in the blades of the fan!
Screenwash fluid
Top up to the required level when necessary.
Fluid specification
The fluid must be topped up with a pre-mixed
product.
In winter (temperatures below zero), a fluid
containing an anti-freeze agent which is
appropriate for the temperature conditions
must be used in order to protect the system's
components (pump, tank, ducts, jets).
Filling with pure water is prohibited in all
circumstances (risk of freezing,
limescale, etc.).
Diesel fuel additive (Diesel
with particle filter)
or On reaching the minimum level
in the particle filter additive tank,
this warning lamp comes on fixed, accompanied
by an audible signal and a warning message.
ignition is switched on (for vehicles equipped
with an electric gauge), or using the dipstick.
It is normal to top up the oil level between two
services (or oil changes). It is recommended
that you check the level, and top up if necessary,
every 3,000 miles (5,000 km).
In order to maintain the reliability of the
engine and emissions control system,
never use additives in the engine oil.
Checking using the dipstick
For the location of the dipstick, please refer
to the illustration of the corresponding engine
compartment.
►

Grasp the dipstick by its coloured grip and
pull it out completely

.
►

Wipe the end of the dipstick using a clean,
lint-free cloth.


► Reinsert the dipstick and push fully down,
then pull it out again to visually check the oil
level: the correct level is between marks A
(max)
and B (min).
Do not start the engine if the level is:
–

above mark
A: contact a CITROËN dealer or a
qualified workshop.
– below mark B : top up the engine oil
immediately.
Oil grade
Before topping up or changing the engine
oil, check that the oil is suitable for the engine
and complies with the recommendations in
the service schedule supplied with the vehicle
(or available from your CITROËN dealer and
qualified workshops).
Use of non-recommended oil may invalidate
the contractual warranty in the event of
engine failure.
Topping up the engine oil level
For the location of the engine oil filler cap, please
refer to the corresponding engine compartment
illustration.
►

Add oil in small quantities, avoiding any spills
on engine components (risk of fire).
►


W
ait a few minutes before checking the level
again using the dipstick.
►

T
op up the level if necessary.
►

After checking the level, carefully screw the
oil filler cap back on

and replace the dipstick in
its tube.
The oil level indication displayed on the instrument panel when the ignition is
switched on is not valid for 30 minutes
following an addition of oil.
Brake fluid
The level of this fluid should be close to the "MAX" mark. If not, check the brake
pads for wear.
To know how often the brake fluid should be
replaced, refer to the manufacturer's servicing
schedule.
Clean the cap before removing it to refill.
Use only DOT4 brake fluid from a sealed
container.
Engine coolant
It is normal to top up this fluid between
two services.
The check and top-up must only be done with
the engine cold.
A level of coolant that is too low risks causing
major damage to the engine; the coolant level
must be close to the "MAX" mark without ever
going above it.
If the level is close to or below the " MIN” mark, it
is essential to top up.
When the engine is hot, the temperature of the
coolant is regulated by the fan.
As the cooling system is pressurised, wait at
least one hour after switching off the engine
before carrying out any work.
In order to avoid the risk of scalding if you need
to top up in an emergency, wrap a cloth around
the cap and unscrew the cap by two turns to
allow the pressure to drop.